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Hergert F.,Brandenburg University of Applied Sciences
Applied Optics | Year: 2017

This article introduces a simple metrology set-up based on white light interference. The aim is to determine the thickness of thin transparent films by their reflection color under white illumination. Therefore, one digital color image of a large field of view is taken in nontelecentric geometry. To obtain reflected light at all angles of view without having to move the camera the substrate has to be sufficiently rough. Additionally, interference occurs at the thin transparent film covering the substrate surface from which a two-dimensional lateral thickness distribution can be calculated. This method has been used as industrial inline process control for a CdS semiconductor layer on top of a rough Cu(In,Ga)(Se,S)2 thin film solar absorber and yielded 74 nm film thickness with only a 1 nm standard deviation. Options to further reduce the standard deviation with different illuminants and other cameras are proposed. © 2017 Optical Society of America.


Grant
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: FCT-07-2014 | Award Amount: 5.99M | Year: 2015

TARGET will deliver a pan-European serious gaming platform featuring new tools, techniques and content for training and assessing skills and competencies of SCA (Security Critical Agents - counterterrorism units, border guards, first responders (police, firefighters, ambulance services civil security agencies, critical infrastructure operators). Mixed-reality experiences will immerse trainees at task, tactical and strategic command levels with scenarios such as tactical firearms events, asset protection, mass demonstrations, cyber-attacks and CBRN incidents. Trainees will use real / training weaponry, radio equipment, command & control software, decision support tools, real command centres, vehicles. Social and ethical content will be pervasive. Unavailable real-source information will be substituted by AVR (Augmented / Virtual Reality - multimedia, synthetic role players). Near-real, all-encompassing and non-linear experiences will enable high degrees of dynamics and variability. The distributed Open TARGET Platform will provide extensible standards driven methods to integrate simulation techniques and AVR technology with existing SCA training equipment and be customisable to local languages, national legal contexts, organisational structures, established standard operational procedures and legacy IT systems. At key training points real-time benchmarking of individuals and teams will be instrumented. TARGET will support inter-agency SCA exercising across the EU and act as a serious gaming repository and brokerage facility for authorised agencies to share training material and maximise reuse and efficiency in delivering complex exercises. TARGET, combining training, content and technology expertise, will be co-led by users and technologists, mainly SMEs. 2 successively developed and trialled versions of the TARGET Solution will support user-technologist dialogue. The TARGET Ecosystem will enable sustainable impact, commercial uptake and synergies at EU level.


Grant
Agency: European Commission | Branch: FP7 | Program: CP | Phase: SEC-2009-6.2-01 | Award Amount: 8.90M | Year: 2010

Police forces in the EU face serious challenges. Integration in the EU has increased the need for cross force collaboration. Technology has created new capabilities for criminals but also possibilities for the police. Changes in the public opinion and in political expectations have created extra challenges. Responses to these challenges and exploitation of opportunities require major changes to the culture and structure of police forces, but these are far from trivial and how they need to be implemented differs from one country to another. So far, change management in police organizations has not been addressed in a comparative interdisciplinary study with a European scope. Based on a study of police forces in 10 countries across Europe COMPOSITE will improve the planning and execution of change initiatives in the police, show how these projects can be better aligned with the cultural and societal context per country and explain how the negative process effects can be mitigated. A further aim is to improve both the individual police organization per country and joint European capabilities. The project delivers: 1.A comparative strategic analysis of strengths, weaknesses, opportunities and threats for police organizations in 10 European countries and best practices to meet current and future challenges. 2.A comparative analysis of planning and execution of the change processes, focusing on the impact of leadership, professional and organizational identities and societal expectations. 3.A toolbox containing instruments for training and consultancy and the Annual European Police force monitor to plan and execute changes responding to known and yet unknown challenges and opportunities. The consortium contains universities, business schools, police academies, a technological research institute and consultancy firms. Police forces from the 10 countries are involved in the research and the dissemination phase of the project and they intend to use the results.


Grant
Agency: European Commission | Branch: FP7 | Program: CP | Phase: ICT-2011.1.4 | Award Amount: 10.71M | Year: 2012

The OPTET project plans through a multi-disciplinary and integrated approach to identify and address the drivers of trust and confidence also fight against its erosion (especially true on the Internet or Cloud). Focus of this project is on socio-technical systems connected to the Internet. The resulting technologies enabling trustworthiness would be verified on two distinct existing execution platforms to demonstrate genericity of OPTET outcomes. Potential of OPTET results will be demonstrated and evaluated in the context of two operational use cases one in the domain of Ambient Assisted Living (AAL) and second Cyber Crisis Management. Overall, the OPTET project will significantly increase the trustworthiness of IT and Services and thus strengthen the competitiveness of the European software and service industry. In doing so OPTET will provide a powerful foundation for designing and developing trustworthy system/services/apps stakeholders can trust (since provable also guaranteed) for the future internet realizing its promises.


Grant
Agency: European Commission | Branch: FP7 | Program: BSG-SME | Phase: SME-1 | Award Amount: 1.46M | Year: 2009

Analytical methods based on fluorescence measurements are widely employed for investigating biological process at cellular level. A modern technique is fluorescence-lifetime imaging microscopy (FLIM), where a map is obtained of the fluorescent emission lifetime versus position in a cell. The objective of project PARAFLUO is an innovative instrumentation system that will enhance and extend the usefulness of FLIM, making possible to obtain simultaneously FLIM data separately for the various spectral components of the emission. There is wide consensus among experimenters that this spectrally resolved technique (called sFLIM) will support a better understanding of the biological processes involved. Such understanding is paramount for the (patho)physiology of tissues and organisms and gives a base for gaining a better insight in key medical issues, such as the origin and growth mechanisms of tumors. The optoelectronic instrumentation developed will be useful also for other market objectives, such as simultaneous multi-spectral profiling of objects by laser detection and ranging (LADAR) techniques. The developments envisaged are essentially: (a) a photon-counting array detector based on the silicon single-photon avalanche diode (SPAD) technology; (b) a new micro-lens system for focusing light onto the detector and (c) an ASIC based multichannel time correlated single photon counting (TCSPC) system, integrated with an optoelectronic setup in a confocal microscope. The base of the PARAFLUO consortium is given by three SMEs; each one having a consolidated technical know-how and an active presence in the market over one of the quoted scientific-technical (S/T) areas. Five RTD performers have been selected primarily because of their high international standard in these areas; furthermore, each of them has experience of active collaboration with the SME directly concerned by the specific S/T work. A professional partner supports the coordinator and ensures timely and efficient exchange of materials and information in the project.


Grossmann M.,Arbeitskreis Meteore E.V. | Mollmann K.-P.,Brandenburg University of Applied Sciences | Vollmer M.,Brandenburg University of Applied Sciences
Applied Optics | Year: 2015

So far experiments with artificial halos from single transparent crystals have suffered from the lack of apparatus that allows simultaneous rotation around two and three axes. A new setup is presented which overcomes these restrictions by combining electrical as well as pneumatic concepts. This enables reproducible experiments of the most common halos observed in nature and for the first time artificial ring halos from single hexagons rotating around three axes simultaneously. In addition, an old qualitative halo demonstration based on perceived colors of rotating colored areas whose contours represent scattering plots has been reinvestigated and the usually nonsaturated color of artificial parhelia was visualized using a crossed prism method. These new experiments are discussed in the context of all known artificial halo experiments. © 2014 Optical Society of America.


Cabanac G.,CNRS Toulouse Institute in Information Technology | Preuss T.,Brandenburg University of Applied Sciences
Journal of the American Society for Information Science and Technology | Year: 2013

Peer review supports scientific conferences in selecting high-quality papers for publication. Referees are expected to evaluate submissions equitably according to objective criteria (e.g., originality of the contribution, soundness of the theory, validity of the experiments). We argue that the submission date of papers is a subjective factor playing a role in the way they are evaluated. Indeed, program committee (PC) chairs and referees process submission lists that are usually sorted by paperIDs. This order conveys chronological information, as papers are numbered sequentially upon reception. We show that order effects lead to unconscious favoring of early-submitted papers to the detriment of later-submitted papers. Our point is supported by a study of 42 peer-reviewed conferences in Computer Science showing a decrease in the number of bids placed on submissions with higher paperIDs. It is advised to counterbalance order effects during the bidding phase of peer review by promoting the submissions with fewer bids to potential referees. This manipulation intends to better share bids out among submissions in order to attract qualified referees for all submissions. This would secure reviews from confident referees, who are keen on voicing sharp opinions and recommendations (acceptance or rejection) about submissions. This work contributes to the integrity of peer review, which is mandatory to maintain public trust in science. © 2012 ASIS&;T.


Vollmer M.,Brandenburg University of Applied Sciences | Mollmann K.-P.,Brandenburg University of Applied Sciences
Physics Education | Year: 2011

The enormous progress in the fields of microsystem technology, microelectronics and computer science has led to the development of powerful high speed cameras. Recently a number of such cameras became available as low cost consumer products which can also be used for the teaching of physics. The technology of high speed cameras is discussed, facilitating an understanding of the problems and restrictions in using these cameras. © 2011 IOP Publishing Ltd.


Knobloch F.,Brandenburg University of Applied Sciences
International Conference on Transparent Optical Networks | Year: 2016

Visible Light Communication (VLC) is a new emerging technology, where delay is a Quality of Service (QoS) criterion for communication. This paper presents an analysis of the theoretically possible end-to-end delay and hop number for Light on Demand (LoD) and VLC-based multihop networks. Taking the human eye perception as a relevant parameter, total delay is analyzed at the Open Systems Interconnection (OSI) layers 1-3. The main goal was to determine a number of hops to achieve remote dimming when the additional harmful perceptions are simultaneously avoided. Based upon the presented simulation results, the main reasons for end-to-end delay are the data rate, the number of retransmissions, the processing time and the number of hops. Hence, employing VLC leads to the limiting number of hops for certain channel, interferer, hardware and eye sensitivity. © 2016 IEEE.


Creutzburg R.,Brandenburg University of Applied Sciences
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2015

The aim of this paper is to give an overview of recent research, development and civil application of remotely piloted aircraft systems (RPAS) in Europe. It describes a European strategy for the development of civil applications of Remotely Piloted Aircraft Systems (RPAS) and reflects most of the contents of the European staff working document SWD(2012) 259 final. © 2015 SPIE.

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